fn main() {
	// no parentheses surrounding the condition
	// the braces are always required
	a := 10
	b := 20
	if a < b {
		println('$a < $b')
	} else if a > b {
		println('$a > $b')
	} else {
		println('$a == $b')
	}
	
	// used as an expression
	num := 777
	s := if num % 2 == 0 { 'even' } else { 'odd' }
	println(s) // "odd"
}
